8 May 1973 - Large- 

 scale slump of upper 

 part of till bluff. 



16 August 1974 - Note failing 

 bluff line and accretionary 

 beach ridge. Dark patches on 

 the foreshore are periodic 

 gravel deposits. 



Profile Line 17 . As mentioned in the text, the till bluff at profile line 17, 

 the till bluffs at profile lines 13 and 15, suffered serious erosion 

 Total recession equaled 38 meters, of which only 1 meter 

 Movement of the bluff occurs through large- 



The higher 



unlike 



during the study 



occurred in the spring of 1974. 



scale slumping which moves trees and grass down the bluff face. 



erosion here than at profile lines 13 and 15 may be explained by examining the 



ground waterflow at each profile line. It is likely that there is a greater 



ground water effect at profile line 17. 



89 



